The most vital and costly Air Conditioner Part is the compressor. If you purchase from AC Parts Distributors; you get standard company warranties on the compressor as well as a superior quality compressor that can function competently for plenty of years. New compressors can be purchased and installed within the AC if the original one turns out to be faulty. It is perfect to have a compressor manufactured by the same company while the rest of the AC. Nevertheless, it is also essential to talk about that only some of the companies manufacture has their own compressors; they simply buy them and install them within their units.